California’s drought woes may have dominated recent news, but the 6.8-magnitude earthquake off the coast of Eureka on Sunday was a reminder of another lurking natural threat. In this segment, we’ll talk about all things seismic with quake experts John Dvorak and David Schwartz. Dvorak’s book “Earthquake Storms” examines the history of the San Andreas Fault, the narrow break in the earth’s crust which stretches more than 800 miles from Northern to Southern California.

John Dvorak, scientist and author of "Earthquake Storms: The Fascinating History and Volatile Future of the San Andreas Fault"
David Schwartz, earthquake geologist at the USGS, Menlo Park


    The Hayward fault could be far more destructive to human life because the very crowded population condition that live in it’s region….The Hayward fault eruptions have an average cycle of 138 years , the last large one of magnitude 7 took place in the year 1868 ,so another large one of near or the same magnitude is overdue by about 6 years…It extend from Fremont and extend all across the East Bay and then it goes under the bay and changes name to the San Rafael fault in Marin county..

  • Sean Dennehy

    What’s the expert consensus on the timeframe for the next big earthquake?

  • Ben Rawner

    Does your guest think that SF is prepared enough. There are so many more high rises and even more are being built. Could SF be hit by a 9.0, like the one that caused the tsunami in Japan.

  • Does slippage occur incrementally, or does it always require a big event?

  • Steve

    According to the book “Ubiquity: Why Catastrophes Happen” by Mark Buchanan, earthquakes are an example of what he calls a “critical state” phenomenon, which are inherently unpredictable. And he claims, in fact, that even if you knew exactly when, where, and how big the next fault slip will occur, you could still not predict the magnitude, due to the complexity of the inter-relationship of faults. I would recommend the book, it is quite interesting.

  • Stephen Persaud

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